text: const config = {};
  
  /**
   * For MySQL installation (not used currently).
   */
  config.mysql = {
      host: process.env.DB_HOST | undefined,
      user: process.env.DB_USER | undefined,
      password: process.env.DB_PASSWORD | undefined,
      database: process.env.DB | undefined,
  }
  
  config.port = process.env.PORT;
  config.host = process.env.HOST;
  config.secret = process.env.APP_SECRET;
  
  module.exports = config;